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PERMITTEENAME/ADDRESS (include Facility NamelLocation if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81434-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />000000132 010-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY MM/DD/YYYY <br />FROM 02/01/2011 TO 02/28/2011 <br />rr <br />Form Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SEDIMENT POND TO SANBORN CREEK <br />External Outfall <br />No Discharge <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION O. FREQUENCY SAMPLE <br /> E O <br />ANALYSIS IY <br /> <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE <br /> MEASUREMENT <br /> <br />0040010 <br />Effluent Gross PERMIT 6.5 •••«• <br />M <br />SU <br /> REQUIREMENT MINIMUM MAXI <br />UM Monthly INSITU <br />Solids, total suspended SAMPLE <br />•""' <br /> MEASUREMENT ""` """ <br />0053010 ",,,, """ <br /> <br />Effluent Gross PERMIT ",,,, 35 70 mg/L <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />00545 1 0 """ """ <br /> <br />Effluent Gross PERMIT """ • ` " Req. Mon. Req. Mon. mL/L <br /> REQUIREMENT 300A AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE ..,,„ <br /> MEASUREMENT <br /> <br />0104510 <br />Effluent Gross PERMIT """ """ "'~" `~"'• 3500 7000 ug/L <br /> REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br /> <br />0358210 <br />Effluent Gross PERMIT „,,,, ""•` ,,,,„ ~'~ ~•„,• 10 mgt <br /> REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT """ """ """ •""' <br /> <br />500501 0 PERMIT Req. Mon. Req. Mon. Mgalld „„~• •••»• .»«. <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN <br />Oil and grease visual SAMPLE <br /> MEASUREMENT <br />840661 0 <br /> PERMIT Req. Mon. Y=1;N=0 •""' •-~•'• ••»•• <br />„»» <br />Effluent Gross REQUIREMENT INST MAX Monthly VISUAL <br />Ig <br />r <br />f <br />F <br />N MEfTITLE PRINCIPAL EXECUTIVE OFFICER Iumifi unde prnalry of a that hsdnc weo and alla achmenswve prepared under my direction <br /> perv,a,nn in accordance ma,frwn gnmea.,,n?matynarrra p?,:nnnu p?ope?y Kn?i,., a„a <br />evaluate the intormuion submitted <br />Baud <br />io <br />- <br />of the <br />h TELEPHONE DATE <br /> <br /> <br /> <br /> <br />m . <br />y <br />q <br />ry <br />prawn or persons w <br />u nt-g, the <br />syst.m. or thou porno dg,ewd bdi ible f gathering the inf rmadvo, the infomutionere submsigmfium <br />ine <br />to the beat d u. <br />Imow <br />of my lcdge and belie!, true, ac and complete. I em aware that there <br />curate, <br />f <br />b <br />m ?. <br /> <br /> <br />?0 ^? <br />Y <br />a N?51 pimp'- <br />orm <br />min <br />g falu inf rmation ndu <br />ding rbep-to ityoffinea W ooprlvntmcmt f rlumwing <br />n S TURE OF PRI f <br /> <br />TYPED OR PRINTED NCIPAL EXECU VE OFFICER OR <br /> AUTHORIZED AGENT A ee? NUMBER M-DD/YYYY <br />COMMENTS ANn FXPLANATInN M ANV Vint ATM Me <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR <=10YR,24HR PRECIP EVENT:SETTLEABLE SOLIDS LIMIT MAY BE WAIVED FOR >10YR,24HR EVENT-SEE I.A.1,PP 4-5, AND <br /> I.A.2, P. 5 <br />FOR RQMNTS.TDS MONITORING-SEE PART VI.A.2.G OF RATIONALE. 30 DAY AVG. IS HIGHEST MONTHLY AVG. DURING PERIOD REPRTD. <br />d5 eamons may pe <br />Page 1